Hi, I have got a Jap spec DC5R, below is a list of parts I already have on my car. Please advice what else I can do to gain more horse power, thanks.
Fujitsubo exhaust
Toda extractor
Toda spec A cam
Toda valve springs
Toda 0.3mm head gasket
Mugen 9200rpm ECU
Top fuel power chamber
Zeal V6...